./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/unsignedintegeroverflow-sas23/bilinear_interpolation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/unsignedintegeroverflow-sas23/bilinear_interpolation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2ab4edcca5b9462828f3f8508070d4176bb26ab0f9320b15e5816d52ba5f91eb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:34:46,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:34:46,904 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:34:46,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:34:46,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:34:46,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:34:46,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:34:46,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:34:46,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:34:46,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:34:46,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:34:46,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:34:46,940 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:34:46,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:34:46,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:34:46,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:34:46,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:34:46,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:34:46,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:34:46,953 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:34:46,954 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:34:46,955 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:34:46,955 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:34:46,955 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:34:46,956 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:34:46,956 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:34:46,957 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:34:46,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:34:46,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:34:46,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:34:46,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:34:46,959 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:34:46,960 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:34:46,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:34:46,960 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:34:46,960 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ab4edcca5b9462828f3f8508070d4176bb26ab0f9320b15e5816d52ba5f91eb [2023-11-21 18:34:47,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:34:47,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:34:47,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:34:47,276 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:34:47,276 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:34:47,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/unsignedintegeroverflow-sas23/bilinear_interpolation.i [2023-11-21 18:34:50,553 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:34:50,730 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:34:50,731 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/sv-benchmarks/c/unsignedintegeroverflow-sas23/bilinear_interpolation.i [2023-11-21 18:34:50,740 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/data/501a8a865/c343e279c8124247ae3dead3f0955c6d/FLAGf5bd2a0ab [2023-11-21 18:34:50,756 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/data/501a8a865/c343e279c8124247ae3dead3f0955c6d [2023-11-21 18:34:50,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:34:50,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:34:50,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:34:50,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:34:50,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:34:50,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:34:50" (1/1) ... [2023-11-21 18:34:50,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669dd16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:50, skipping insertion in model container [2023-11-21 18:34:50,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:34:50" (1/1) ... [2023-11-21 18:34:50,813 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:34:51,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:34:51,070 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:34:51,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:34:51,141 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:34:51,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:51 WrapperNode [2023-11-21 18:34:51,142 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:34:51,145 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:34:51,145 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:34:51,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:34:51,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:51" (1/1) ... [2023-11-21 18:34:51,177 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:51" (1/1) ... [2023-11-21 18:34:51,222 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-11-21 18:34:51,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:34:51,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:34:51,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:34:51,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:34:51,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:51" (1/1) ... [2023-11-21 18:34:51,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:51" (1/1) ... [2023-11-21 18:34:51,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:51" (1/1) ... [2023-11-21 18:34:51,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:51" (1/1) ... [2023-11-21 18:34:51,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:51" (1/1) ... [2023-11-21 18:34:51,252 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:51" (1/1) ... [2023-11-21 18:34:51,256 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:51" (1/1) ... [2023-11-21 18:34:51,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:51" (1/1) ... [2023-11-21 18:34:51,265 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:34:51,266 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:34:51,277 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:34:51,278 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:34:51,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:51" (1/1) ... [2023-11-21 18:34:51,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:34:51,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:34:51,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:34:51,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:34:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:34:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:34:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:34:51,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:34:51,451 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:34:51,454 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:34:51,818 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:34:51,933 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:34:51,933 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:34:51,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:34:51 BoogieIcfgContainer [2023-11-21 18:34:51,935 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:34:51,936 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:34:51,937 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:34:51,948 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:34:51,948 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:34:51" (1/1) ... [2023-11-21 18:34:51,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:34:52,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:34:52,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-11-21 18:34:52,034 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-11-21 18:34:52,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:34:52,037 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:34:52,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:52,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:34:52,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:34:52,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:34:52,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:34:52,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-21 18:34:52,237 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-21 18:34:52,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:34:52,238 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:34:52,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:52,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:34:52,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:34:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:34:52,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:34:52,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-21 18:34:52,286 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-21 18:34:52,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:34:52,287 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:34:52,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:52,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:34:52,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:34:52,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:34:52,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:34:52,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-21 18:34:52,332 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-21 18:34:52,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:34:52,333 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:34:52,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:52,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:34:52,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:34:52,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:34:52,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:34:52,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:34:52,392 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:34:52,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:34:52,392 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:34:52,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:52,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:34:52,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:34:52,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:34:52,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:34:52,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-21 18:34:52,473 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-21 18:34:52,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:34:52,473 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:34:52,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:52,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:34:52,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:34:52,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:34:52,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:34:52,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-11-21 18:34:52,537 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-11-21 18:34:52,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:34:52,538 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-11-21 18:34:52,547 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-21 18:34:52,567 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:34:52,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:34:52 ImpRootNode [2023-11-21 18:34:52,572 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:34:52,572 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:34:52,573 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:34:52,573 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:34:52,573 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:34:51" (3/4) ... [2023-11-21 18:34:52,575 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:34:52,584 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-21 18:34:52,585 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 18:34:52,585 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 18:34:52,586 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:34:52,734 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:34:52,734 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:34:52,734 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:34:52,738 INFO L158 Benchmark]: Toolchain (without parser) took 1969.61ms. Allocated memory is still 121.6MB. Free memory was 79.6MB in the beginning and 92.7MB in the end (delta: -13.1MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2023-11-21 18:34:52,739 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory was 93.3MB in the beginning and 93.1MB in the end (delta: 151.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:34:52,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.37ms. Allocated memory is still 121.6MB. Free memory was 79.2MB in the beginning and 68.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:34:52,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.54ms. Allocated memory is still 121.6MB. Free memory was 68.5MB in the beginning and 66.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:34:52,744 INFO L158 Benchmark]: Boogie Preprocessor took 42.45ms. Allocated memory is still 121.6MB. Free memory was 66.0MB in the beginning and 64.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:34:52,744 INFO L158 Benchmark]: RCFGBuilder took 669.32ms. Allocated memory is still 121.6MB. Free memory was 64.8MB in the beginning and 86.1MB in the end (delta: -21.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-11-21 18:34:52,745 INFO L158 Benchmark]: CodeCheck took 635.32ms. Allocated memory is still 121.6MB. Free memory was 86.1MB in the beginning and 50.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-21 18:34:52,746 INFO L158 Benchmark]: Witness Printer took 162.93ms. Allocated memory is still 121.6MB. Free memory was 50.0MB in the beginning and 92.7MB in the end (delta: -42.7MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2023-11-21 18:34:52,748 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 33 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 303 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory was 93.3MB in the beginning and 93.1MB in the end (delta: 151.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.37ms. Allocated memory is still 121.6MB. Free memory was 79.2MB in the beginning and 68.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.54ms. Allocated memory is still 121.6MB. Free memory was 68.5MB in the beginning and 66.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.45ms. Allocated memory is still 121.6MB. Free memory was 66.0MB in the beginning and 64.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 669.32ms. Allocated memory is still 121.6MB. Free memory was 64.8MB in the beginning and 86.1MB in the end (delta: -21.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * CodeCheck took 635.32ms. Allocated memory is still 121.6MB. Free memory was 86.1MB in the beginning and 50.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 162.93ms. Allocated memory is still 121.6MB. Free memory was 50.0MB in the beginning and 92.7MB in the end (delta: -42.7MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:34:52,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b802fa-e260-4e1d-a920-24a12d613ada/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE